This would depend on house prices. Where I live, you can buy a 2000 sq ft house for $300K or less. That's 1.3% increase in price to add sprinklers, and I would

This would depend on house prices. Where I live, you can buy a 2000 sq ft house for $300K or less. That's 1.3% increase in price to add sprinklers, and I would wager that 99% of homeowners would prefer not to spend $4K on this.